Structure analysis and electrical resistivity of the high- And lowerature phases of NaPd3Ge2 single crystal

Takahiro Yamada, Kohei Aiba, Daigorou Hirai, Zenji Hiroi, Hisanori Yamane

Research output: Contribution to journalArticle

Abstract

Rod-shaped single crystals of NaPd3Ge2 with a length of ∼1 mm were grown using the self-flux method. The electrical resistivity exhibits a metal-like temperature dependence with a kink at 115 K, which is due to a structural phase transition not observed in the previous study using polycrystalline samples. The higherature phase of NaPd3Ge2 crystallizes in an orthorhombic structure of the space group Imma, while the lowerature phase is isostructural to NaPd3Si2 (space group: Imm2) as determined by the single-crystal X-ray diffraction analyses at 90 K. The density of states and total energies obtained by the density functional theory calculations reveal that both phases are metallic, and the lowerature structure is more stable.

Original languageEnglish
Article numberSFFC03
JournalJapanese journal of applied physics
Volume59
Issue numberSF
DOIs
Publication statusPublished - 2020 Apr 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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